High-Quality Flanges | Duplex Steel & Stainless Steel

FLANGES

Flanges, essential mechanical components, serve as the connecting points in piping systems, enabling the secure attachment of pipes, valves, pumps, and other equipment. Their disc-shaped design with bolt holes facilitates a reliable and leak-proof connection, ensuring the integrity of the entire system.

Common Materials

Stainless Steel: Known for its corrosion resistance and durability, stainless steel flanges are widely used in industries like oil and gas, chemical processing, food processing, and construction.

Nickel Alloys: Offering exceptional heat resistance and corrosion resistance, nickel alloys are ideal for demanding applications such as chemical processing, aerospace, marine, and power generation.

Copper Alloys: Copper and its alloys are valued for their excellent thermal and electrical conductivity, corrosion resistance, and malleability. They find applications in plumbing, HVAC systems, electrical wiring, and heat exchangers.

Aluminum Alloys: Lightweight and corrosion-resistant, aluminum alloys are used in applications where weight is a concern, such as automotive, aerospace, and construction.

Titanium Alloys: With a high strength-to-weight ratio and excellent corrosion resistance, titanium alloys are suitable for aerospace, medical implants, chemical processing, and marine applications.

Manufacturing Process

Flange manufacturing typically involves:

Raw Material Inspection: Quality control measures ensure the raw material meets required standards.

Material Cutting: The material is cut into strips and rolled into a circular shape.

Forging: Forged flanges are typically less likely to corrode and offer better mechanical properties.

Heat Treatment: Heat treatment is applied to control the microstructure and properties of the flange.

Final Inspection: The flange is inspected for dimensions, size, and surface finish.

Key Features

Bolt Holes: Flanges have evenly spaced bolt holes for secure attachment.

Raised Face or Flat Face: The sealing surface can be raised or flat, depending on the application.

Types: Common types include slip-on, weld neck, socket weld, threaded, blind, and lap joint flanges.

Flanges Specifications
Standard	ASTM A182 / ASME SA182
Dimensions	ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Flange Size Chart	1/2″ (15 NB) to 48″ (1200NB), DN10~DN5000
Pressure Rating	Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Pressure Calculation in DIN	PN6 PN10 PN16 PN25 PN40, PN64 / 6Bar 10Bar 16Bar 25Bar 40Bar
Delivery Condition	Pickled, Polished, Bright Annealed
Technique	Forged/Plate
Application	Heat Exchanger, Heater, Condenser, Machining, Bearing Machining, API Service…
JIS	16 K, 5K, 10 K, 20 K, 30 K, 40 K, 63 K
Flange Connection / Flange Face Type	Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove, Flange Pipe.
ContentTypes of Flanges	Threaded / Screwed / Forged / Plate
Coating	Yellow Transparent, Zinc Plated, Anti-rust Paint, Oil Black Paint, Cold and Hot Dip Galvanized
Production technique Used	Heat treated, Forged and Machined
Equipment	Press machine, Bending machine, Pushing Machine, Sand-blasting machine, electric bevelling machine etc.
Test Certificates	EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc

APPLICATION

Power Generation
Oil and Gas Industry
Shipbuilding

Chemical Processing
Water and Wastewater Treatment

What We Offer

Duplex Steel

⇒ Duplex UNS 32205 Flanges

⇒ Duplex UNS 31803 Flanges

⇒ Lean Duplex 2101 Flanges

Super Duplex Steel

⇒ Super Duplex UNS 32750 Flanges

⇒ Super Duplex UNS 32760 Flanges

Stainless Steel

⇒ Stainless Steel 304/ 304L Flanges

⇒ Stainless Steel 309/309S /309H Flanges

⇒ Stainless Steel 310/310S /310H Flanges

⇒ Stainless Steel 316/ 316L/316TI Flanges

⇒ Stainless Steel 317 /317L Flanges

⇒ Stainless Steel 321 Flanges

⇒ Stainless Steel 347 /347H Flanges

⇒ Stainless Steel 904L Flanges

Inconel

⇒ Inconel 600 Flanges

⇒ Inconel 601 Flanges

⇒ Inconel 625 Flanges

⇒ Inconel 718 Flanges

Incoloy

⇒ Incoloy 800 /800H/ 800HT Flanges

⇒ Incoloy 825 Flanges

Monel

⇒ Monel 400 Flanges

SMO 254 Steel

⇒ SMO 254 Flanges

17 -4 PH Steel

⇒ 17 -4 PH Flanges

Hastelloy

⇒ Hastelloy C 22 Flanges

⇒ Hastelloy C 276 Flanges

Nickel Alloy

⇒ Nickel Alloy 200 Flanges

⇒ Nickel Alloy 201 Flanges

Alloy Steel

⇒ Alloy steel ASTM A387 Grade 5 Flanges

⇒ Alloy steel ASTM A387 Grade 9 Flanges

⇒ Alloy steel ASTM A387 Grade 11 Flanges

⇒ Alloy steel ASTM A387 Grade 12 Flanges

⇒ Alloy steel ASTM A387 Grade 22 Flanges

Titanium

⇒ Titanium GR.1 /GR.2/ GR.3 Flanges

⇒ Titanium GR.5 /GR.7 /GR.11 Flanges

Duplex Steel And Engineering Company is a leading provider of high-quality plates, specializing in a wide range of materials, including stainless steel, nickel alloys, copper alloys, aluminum alloys, and titanium alloys. With a commitment to precision engineering and superior craftsmanship, we offer products that meet the highest industry standards. Our expertise and dedication to customer satisfaction make us a trusted partner for businesses across various sectors.